/**
 * Human-facing `dsh-harness-check` command for DeepSeek Harness.
 *
 * Re-runs the bundle contract self-check on demand and prints one line per
 * feature. Mirrors `command-role.js`: the same object-form
 * `commands.register`, the same `{ kind, text }` result shape.
 */

export function registerCheckCommand({ commands, collect, logger }) {
  commands.register({
    name: 'dsh-harness-check',
    description: 'Проверить контракт DSH, на который опирается dsh-harness',
    handler: async () => {
      let report
      try {
        report = collect()
      } catch (error) {
        logger?.warn?.('[dsh-harness] dsh-harness-check failed: %s', error?.message ?? error)
        return { kind: 'error', text: String(error?.message ?? error) }
      }

      const problems = report.filter((entry) => !entry.ok)
      const lines = report.map((entry) =>
        entry.ok ? `${entry.feature}: ok` : `${entry.feature}: not-ok — ${entry.detail}`,
      )
      const headline =
        problems.length === 0
          ? 'dsh-harness self-check: all ok'
          : `dsh-harness self-check: ${problems.length} problem(s)`
      return { kind: 'success', text: [headline, ...lines].join('\n') }
    },
  })
}